← Directory

Openllmetry

Open Source
★ 7,154 • Updated Aug 16, 2026, 12:28 AM

Openllmetry is an open-source project that provides observability for Generative AI and LLM applications using OpenTelemetry standards.

Use Cases ▼
01

Tracing LLM calls across microservices to identify bottlenecks

02

Monitoring token usage and costs per request

03

Debugging latency issues in AI applications

04

Evaluating model performance and quality over time

05

Integrating LLM observability with existing OpenTelemetry pipelines

06

Tracking errors and anomalies in generative AI responses

What Problem It Solves ▼

Openllmetry solves the challenge of monitoring and debugging LLM-based applications by providing standardized, vendor-neutral observability. It captures detailed telemetry data such as prompts, completions, token counts, latency, and model metadata, enabling teams to understand performance, cost, and reliability of their AI services.

Key Features ▼
✓

Open-source and vendor-neutral

✓

Based on OpenTelemetry standard

✓

Automatic instrumentation for many LLM frameworks

✓

Supports Python and TypeScript

✓

Integration with existing observability stacks

Overview

Openllmetry is an open-source project that provides observability for Generative AI and LLM applications using OpenTelemetry standards. It offers automatic instrumentation for popular LLM frameworks and services, capturing traces, metrics, and logs related to model calls, token usage, latency, and errors.

Full Description ▼

The project includes SDKs for Python and TypeScript, enabling developers to add observability to their AI applications with minimal code changes. It supports integration with existing OpenTelemetry collectors and backends, allowing data to be exported to any observability platform that supports OTLP.

Developed by Traceloop, Openllmetry aims to provide vendor-neutral telemetry for AI workloads, helping teams monitor performance, cost, and quality without being locked into a specific commercial observability tool. It is distributed under the Apache 2.0 license.

Pros & Cons

Pros

+

Open-source and vendor-neutral

+

Based on OpenTelemetry standard

+

Automatic instrumentation for many LLM frameworks

+

Supports Python and TypeScript

+

Integration with existing observability stacks

Cons

−

Requires setting up an OpenTelemetry backend for full value

−

May not cover all niche LLM frameworks

−

Documentation can lag behind features

−

Advanced features may be limited compared to commercial tools

Similar Tools

Langfuse LangSmith Helicone Arize Phoenix OpenTelemetry

More in LLM